In Stock. 45 Day Lowest Price - 100% Satisfaction Guarantee. Digital chromatic tuner featuring support for the Buzz Feiten Tuning System. This is the most accurate hand-held digital tuner available for under $100! Tunes within a 1 cent window compared with others that have a 3 cent window. Two types of tuning modes can be selected: chromatic (for tuning normally tuned instruments) or Buzz Feiten.